From ExpertFlyer but exists on UA.com
Puzzling UA schedule for UA. Only UA ATL-SFO non-stops, same time of day - arrival and departure, same aircraft type, different inventory, seatmap and bookings
Likely an error, wonder which will disappear.
Aware August and beyond schedules are mostly fiction.
Aware of hub-to-hub running multiple flights with nearly same time but usually a few minutes different
One way to make use of parallel runaways